Abstract

In this Letter we report on room temperature continuous wave laser operation in the red (639 nm, P03F32) and orange (604 nm, P03H36) spectral regions of Pr3+-doped LiYF4 planar waveguides fabricated by liquid phase epitaxy. Output powers of 25 and 12 mW and slope efficiencies of 5% and 6% were achieved at 639 and 604 nm, respectively, by pumping with an optically pumped semiconductor laser operating at 479.2 nm.

© 2013 Optical Society of America

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